using a 64-bit OS - you can use Google Desktop (Search), and then add the local shares as additional paths.

If you are using Google Desktop, you can also improve the indexing of CAD files by installing the 'General CADD Pro' indexer:After installing Desktop Search, download, unzip the zip file and run SetupGeneralCADDIndexer.msi to install the General CADD Desktop Search Plug-In.click this link